ATE277423T1 - ELECTRODE AND METHOD AND DEVICE FOR PRODUCING THE SAME - Google Patents

ELECTRODE AND METHOD AND DEVICE FOR PRODUCING THE SAME

Info

Publication number
ATE277423T1
ATE277423T1 AT98113037T AT98113037T ATE277423T1 AT E277423 T1 ATE277423 T1 AT E277423T1 AT 98113037 T AT98113037 T AT 98113037T AT 98113037 T AT98113037 T AT 98113037T AT E277423 T1 ATE277423 T1 AT E277423T1
Authority
AT
Austria
Prior art keywords
electrode
producing
same
point
shaft
Prior art date
Application number
AT98113037T
Other languages
German (de)
Inventor
Bernhard Dr Altmann
Rudolf Richter
Klaus Stedele
Original Assignee
Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh filed Critical Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh
Application granted granted Critical
Publication of ATE277423T1 publication Critical patent/ATE277423T1/en

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J61/00—Gas-discharge or vapour-discharge lamps
    • H01J61/02—Details
    • H01J61/04—Electrodes; Screens; Shields
    • H01J61/06—Main electrodes
    • H01J61/073—Main electrodes for high-pressure discharge lamps
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J9/00—Apparatus or processes specially adapted for the manufacture, installation, removal, maintenance of electric discharge tubes, discharge lamps, or parts thereof; Recovery of material from discharge tubes or lamps
    • H01J9/02—Manufacture of electrodes or electrode systems

Landscapes

  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Discharge Lamp (AREA)
  • Powder Metallurgy (AREA)
  • Electrical Discharge Machining, Electrochemical Machining, And Combined Machining (AREA)
  • Secondary Cells (AREA)
  • Battery Electrode And Active Subsutance (AREA)
  • Superconductors And Manufacturing Methods Therefor (AREA)

Abstract

The electrode (4) is made of wolfram material, which may be doped and has cylindrical shaft (5) with a conical point (9) which is formed by radial deformation of the shaft, e.g. using radial hammering or transverse rolling, for increasing the hardness in the vicinity of the point.
AT98113037T 1997-09-04 1998-07-14 ELECTRODE AND METHOD AND DEVICE FOR PRODUCING THE SAME ATE277423T1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19738574A DE19738574A1 (en) 1997-09-04 1997-09-04 Electrode and method and apparatus for making the same

Publications (1)

Publication Number Publication Date
ATE277423T1 true ATE277423T1 (en) 2004-10-15

Family

ID=7841107

Family Applications (1)

Application Number Title Priority Date Filing Date
AT98113037T ATE277423T1 (en) 1997-09-04 1998-07-14 ELECTRODE AND METHOD AND DEVICE FOR PRODUCING THE SAME

Country Status (7)

Country Link
US (1) US6109995A (en)
EP (1) EP0901150B1 (en)
JP (1) JPH11135011A (en)
CN (1) CN1151537C (en)
AT (1) ATE277423T1 (en)
DE (2) DE19738574A1 (en)
HU (1) HU221580B (en)

Families Citing this family (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2001319617A (en) * 2000-05-08 2001-11-16 Ushio Inc Ultrahigh-pressure mercury lamp
JP4436547B2 (en) * 2000-07-31 2010-03-24 株式会社ユメックス Cathode for discharge lamp, discharge lamp provided with the cathode, and method for producing the cathode
JP4475774B2 (en) * 2000-08-22 2010-06-09 株式会社ユメックス Method for producing cathode for discharge lamp
JP2002352772A (en) * 2001-05-24 2002-12-06 Phoenix Denki Kk High-pressure discharge lamp
DE10137794B4 (en) * 2001-08-07 2008-06-12 Patent-Treuhand-Gesellschaft für elektrische Glühlampen mbH Electrode for high pressure discharge lamps and high pressure discharge lamp
US6578970B2 (en) 2001-09-19 2003-06-17 Advanced Radiation Corporation Point-like lamp with anode chimney
JP3899898B2 (en) * 2001-10-30 2007-03-28 ウシオ電機株式会社 Short arc type mercury lamp
EP1741119B1 (en) * 2004-04-21 2019-04-03 Lumileds Holding B.V. Method for the thermal treatment of tungsten electrodes free from thorium oxide for high-pressure discharge lamps
DE102004043247B4 (en) * 2004-09-07 2010-04-15 Osram Gesellschaft mit beschränkter Haftung Electrode for high-pressure discharge lamps and high-pressure discharge lamp with such electrodes
AT9340U1 (en) * 2005-12-23 2007-08-15 Plansee Metall Gmbh METHOD FOR PRODUCING A HIGH-SEALED SEMI-FINISHED OR COMPONENT
CN100433238C (en) * 2006-03-13 2008-11-12 成都三普电光源实业有限公司 High brightness electrode for super high pressure mercury lamp
DE102006061375B4 (en) 2006-12-22 2019-01-03 Osram Gmbh Mercury high-pressure discharge lamp with an anode containing tungsten and potassium, which has a grain count greater than 200 grains per mm 2 and a density greater than 19.05 g / cm 3
JP5024466B1 (en) * 2011-03-10 2012-09-12 ウシオ電機株式会社 Short arc type discharge lamp
JP5823770B2 (en) * 2011-08-09 2015-11-25 プランゼー エスエー Short arc high pressure discharge lamp
AT15459U1 (en) * 2016-04-11 2017-09-15 Plansee Se anode
JP6826310B2 (en) * 2016-11-07 2021-02-03 ウシオ電機株式会社 Electrodes for discharge lamps and their manufacturing methods
JP7313791B2 (en) * 2018-08-23 2023-07-25 株式会社オーク製作所 Discharge lamp and method for manufacturing discharge lamp electrode
WO2020171065A1 (en) * 2019-02-18 2020-08-27 株式会社 東芝 Cathode component for discharge lamps, discharge lamp and method for producing cathode component for discharge lamps
US11043352B1 (en) 2019-12-20 2021-06-22 Varex Imaging Corporation Aligned grain structure targets, systems, and methods of forming

Family Cites Families (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE325464C (en) * 1911-10-03 1920-09-10 Heinrich Leiser Dr Process for the production of mechanically resistant pressed molded bodies
US3678575A (en) * 1970-03-10 1972-07-25 Hitachi Ltd Manufacturing method of a magnetron anode
NL7406379A (en) * 1974-05-13 1975-11-17 Philips Nv HIGH PRESSURE DISCHARGE LAMP.
JPS62224495A (en) * 1986-03-24 1987-10-02 Toho Kinzoku Kk Tungsten electrode material
FR2603749B1 (en) * 1986-09-08 1992-06-05 Eyquem METHOD FOR MANUFACTURING A BIMETALLIC CENTRAL ELECTRODE HAVING A PLATINUM TIP FOR SPARK PLUG AND ELECTRODE OBTAINED ACCORDING TO THIS PROCESS
DE3723271A1 (en) * 1987-07-14 1989-01-26 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh CATHODE FOR A HIGH PRESSURE DISCHARGE LAMP
US4859239A (en) * 1988-12-20 1989-08-22 Gte Products Corporation Tungsten electrode and method of producing same
GB2234920A (en) * 1989-08-11 1991-02-20 Ford Motor Co Forming an erosion resistant tip on an electrode
JPH0378929A (en) * 1989-08-22 1991-04-04 Yokogawa Electric Corp Manufacture of fine electrode
DE4229317A1 (en) * 1992-09-02 1994-03-03 Patent Treuhand Ges Fuer Elektrische Gluehlampen Mbh High pressure discharge lamp
DE4442161C1 (en) * 1994-11-27 1996-03-07 Bayerische Metallwerke Gmbh Method for producing a shaped component for e.g. welding electrodes

Also Published As

Publication number Publication date
EP0901150A2 (en) 1999-03-10
JPH11135011A (en) 1999-05-21
HU9802006D0 (en) 1998-10-28
US6109995A (en) 2000-08-29
DE59811983D1 (en) 2004-10-28
EP0901150B1 (en) 2004-09-22
HUP9802006A2 (en) 1999-06-28
DE19738574A1 (en) 1999-03-11
CN1210360A (en) 1999-03-10
EP0901150A3 (en) 1999-04-21
HU221580B (en) 2002-11-28
CN1151537C (en) 2004-05-26
HUP9802006A3 (en) 2001-03-28

Similar Documents

Publication Publication Date Title
ATE277423T1 (en) ELECTRODE AND METHOD AND DEVICE FOR PRODUCING THE SAME
ATE483042T1 (en) STRUCTURED COMPOSITE MATERIAL, PRODUCTION METHOD AND DEVICE FOR PRODUCTION
DE3769074D1 (en) METHOD FOR PRODUCING A PILE IN THE GROUND, AND DRILLING MACHINE, AND DEVICE FOR CARRYING OUT THIS METHOD.
DE60124772D1 (en) METHOD AND DEVICE FOR PRODUCING AN INTRAVASCULAR STENT
EP0917398A3 (en) Hearing aid and method of setting audiological/acoustical parameters
EP0397161A3 (en) Methods for device transplantation
DE69404286D1 (en) METHOD FOR DISINFECTING WATER, SUCH AS FROM GIESSWASSER IN GARTENBAU, AND DEVICE FOR CARRYING OUT THIS PROCESS
ATE315838T1 (en) METHOD FOR PRODUCING A PERMANENT ELECTRICAL CONTACT ON THE WEB OF A RAILWAY RAIL AND PERMANENT ELECTRICAL CONTACT PRODUCED USING THE METHOD
HK1001885A1 (en) Microorganism antigen extraction methods.
DE69025831D1 (en) Electron emitting device; Manufacturing method of electron emitting device, manufacturing method thereof, and display device and electron beam writing device using this device.
EP0908786A3 (en) Process for reducing shrinkage of features formed in a photoresist by treatment with an amine, an amide or an aldehyde
EP0926368A3 (en) Rolling bearing for high rotational speeds
DE59806863D1 (en) METHOD AND DEVICE FOR PRODUCING FILLER-BASED POLYURETHANES
WO2002031530A3 (en) Ultrasonic imaging apparatus and method of indicating the next scanning start time
DE59002167D1 (en) METHOD FOR PRODUCING Sintered Microcrystalline ALPHA-AL2O3 BODY AND USE THEREOF.
EP0800873A3 (en) Process for soil remediation and apparatus used therefor
DE60020854D1 (en) METHOD FOR PRODUCING A MATRIX AND MATRIX MANUFACTURED THROUGH THIS METHOD
ATE298132T1 (en) HOLDER RING AND TARGET AND METHOD FOR PRODUCING IT
ATE417919T1 (en) MICROBIOLOGICAL PROCESS FOR PRODUCING AMIDES
DE68917322D1 (en) ENGINE BEARING ALLOY AND METHOD FOR THE PRODUCTION THEREOF.
ATE210534T1 (en) METAL PART HAVING AN EXTERNAL SURFACE WITH A SPECIAL PROFILE, POLISHING METHOD FOR PRODUCING THE SAME AND DEVICE FOR IMPLEMENTING IT
ATE157282T1 (en) METHOD FOR PRODUCING AN ACTIVE COMPOSITION AND COMPOSITION PRODUCED THEREFROM
DE59912379D1 (en) Method for presetting cold deformation plants
ATE297270T1 (en) METHOD AND DEVICE FOR THE SURFACE TREATMENT OF WORKPIECES AND THEIR USE
DE69822870D1 (en) METHOD FOR DESMETHYLATING ERYTHROMYCINES AND THEIR DERIVATIVES